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That’s probably dependent on two Things:

  1. the logic of your rules at all (if (GF_LaundryRoom_Power_Trockner.state < 45.00) {) - you have to have the “.state” Syntax!
  2. the logic of how you measure your washing machine or dryer
    just have a look here - it’s Sonoff-hardware, but the logic works for your homematic also:
    Washing Machine State Machine